Using props in initial data?

[pearofducks]

From the example in README there's:

// use prop values for initial data
  helloMsg = 'Hello, ' + this.propMessage

If I copy the full example into a component and use it, helloMsg is always undefined (even when the prop is set to a string). Should this be the case*? It works in other methods and such, but not in initial data.

*The wording in that comment makes it seem like this should not be undefined. :)

[ktsn]

Thanks for reporting this.
I'm afraid, I could not reproduce this problem. What module bunder/transpiler are you using?

[pearofducks]

Here's an example repo.

[ktsn]

The cause seems to be missing inheritance of Vue class. Adding extends Vue to Comp class solves this issue.
I'll update README and add a warning message for that...

[ktsn]

A warning message will be printed on v4.4.0 or later.